๐Ÿ›ก๏ธ CVE-2026-44638
๐ŸŸข CVSS 2.5 โ€” Low โš ๏ธ Exploit Public CWE-476 NVD
2.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. From to 1.8.7-r1, a wrong NULL check after an allocation call in sixel_decode_raw and sixel_decode causes a NULL pointer dereference whenever the allocation fails. The check tests the address of the output parameter (always non-NULL) instead of the value the malloc returned. On allocation failure, the function continues and writes through a NULL pointer, crashing the process. This is a denial of service against any caller of these public APIs that hits a low-memory condition. This vulnerability is fixed in 1.8.7-r2.

Details

Severity LOW
CVSS Score 2.5
CVSS Vector CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
CWE CWE-476
Public Exploit โš ๏ธ Yes
Source NVD
Published 2026-05-14
Updated 2026-06-02
Modified 2026-05-15
Fix URL N/A

Affected Packages

Software From version Fixed in
libsixel 1.0.0 1.8.7-r2
unknown โ€” โ€”

Similar Threats

Free Vulnerability Check

Is your WordPress site affected?

BotEraser helps you identify potentially vulnerable plugins and themes by checking your installation against known CVE records.

Scan My Site Free โ†’

No credit card required  ยท  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.